[Koha-bugs] [Bug 20689] Make it possible to add capital letter subfields to item search fields

[bugzilla-daemon at bugs.koha-community.org]

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=20689

--- Comment #50 from Katrin Fischer <katrin.fischer at bsz-bw.de> ---
I've fixed a little conflict, signed the patches off, filed bug 28892 for the
search issue and... would like to throw them back into the queue.

I feel like we should still push these patches, even with the search issue:

* To me this patch set provides a great usability improvement to the item
search fields form as it gets rid of the mighty long pull downs that were hard
to handle.

* The search issue already exists right now: if you are using capital subfields
you will find their contents already mixed with the configurable lower case
subfields. It doesn't work correctly now - that's why I made bug 28892 a "see
also" instead of a "blocks" or "depends on".

* At the moment you could get around the form limitation by configuring the
lower case letter for your upper case subfields. But as the MARC field and
subfield are part of the displayed search option description, I think it will
be nicer to allow the correct thing to be entered in the first place here.

* The search issue is probably only going to 'hit', when upper case subfields
are used in bibliographic records. The more common use case for this kind of
subfield are item fields, as all the lower case letters and numbers are already
used up in MARC21. This also means, that there is a really high chance that
only the capital letter subfield will be queried via more_subfields_xml, as the
lower case one is very likely to be mapped to a database field. So in this
case, the results will be accurate.

* The new form allows entering capital letter subfields, but it doesn't
advertise it. If people think it's better we could change the bug title to
highlight this as a usability improvement ... or we could add a hint explaining
the limitation to the configuration page.

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